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Installation
Installer reference guide
86
EPGA11~ EAV23DA6V
Daikin Altherma 3 H F
4P606487-1 – 2019.12
7.6 Connecting the electrical wiring
7.6.1 About connecting the electrical wiring
Before connecting the electrical wiring
Make sure the water piping is connected.
Typical workflow
Connecting the electrical wiring typically consists of the following stages:
1
Making sure the power supply system complies with the electrical
specifications of the heat pump.
2
Connecting the electrical wiring to the outdoor unit.
3
Connecting the electrical wiring to the indoor unit.
4
Connecting the main power supply.
5
Connecting the backup heater power supply.
6
Connecting the shut-off valves.
7
Connecting the electrical meters.
8
Connecting the domestic hot water pump.
9
Connecting the alarm output.
10
Connecting the space cooling/heating ON/OFF output.
11
Connecting the changeover to an external heat source.
12
Connecting the power consumption digital inputs.
13
Connecting the safety thermostat.
7.6.2 About electrical compliance
Equipment complying with EN/IEC 61000‑3‑12 (European/International Technical
Standard setting the limits for harmonic currents produced by equipment
connected to public low-voltage systems with input current >16 A and ≤75 A per
phase.).
Only for the backup heater of the indoor unit
"7.6.9 To connect the backup heater power supply"
92].
7.6.3 Precautions when connecting the electrical wiring
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
General safety precautions
▪
Preparation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.